Orbit determination strategies for the on-ground trajectory reconstruction of Low Earth Orbit satellites are compared. The analyzed strategies involve different GPS measurement types comprising navigation solution, single or dual-frequency pseudorange, as well as carrier phase measurements. Furthermore, different processing techniques such as kinematic or reduceddynamic processing are addressed...

We give a definition of generalized indicators of sensitivity to initial conditions and orbit complexity (a measure of the information that is necessary to describe the orbit of a given point). The well known Ruelle-Pesin and Brin-Katok theorems, combined with Brudno’s theorem give a relation between initial data sensitivity and orbit complexity that is generalized in the present work. The gene...

Chinese BeiDou Navigation Satellite System is officially operational as a regional constellation with five Geostationary Earth Orbit (GEO) satellites, five Inclined Geosynchronous Satellite Orbit (IGSO) satellites and four Medium Earth Orbit (MEO) satellites. Observations from the BeiDou Experimental Tracking Stations (BETS) and the IGS Multi-GNSS Experiment (MGEX) network from 1 January to 31 ...

The Chinese BeiDou system (BDS), having different types of satellites, is an important addition to the ever growing system of Global Navigation Satellite Systems (GNSS). It consists of Geostationary Earth Orbit (GEO) satellites, Inclined Geosynchronous Satellite Orbit (IGSO) satellites and Medium Earth Orbit (MEO) satellites. This paper investigates the receiver-dependent bias between these sat...

This paper proposed a polynomial representation-based method for orbit determination (OD) of spacecraft with the unknown maneuver. Different from conventional maneuvering OD approaches that rely on specific dynamic equation, needs no priori information model. The polynomials are used to represent A transformation is made improve convergence and robustness. Extended Kalman Filter (EKF) process i...